Technic Launcher/ ModProblems with 64 and 32 bit

Question

Yesterday we started to play Minecraft again with the Technic Launcher. After 3 Hours of Playing Hexxit, we started to play another Modpack. But the Launcher lead me to a 64 bit Version of Java, so that I installed it. Now, after the start of every Modpack, I have massive Lags in the Minecraft Main-menu or it crashes at the "Mojang-Screen". I don`t know what happened. I have got the minimum requirements and a 64 Bit Windows System, but no Mod is starting with the right Java version.

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ill link a paste bin for the full reporthttps://pastebin.com/NJWZQDSN

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https://pastebin.com/QKkLU2qf